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SAE-AISI M33 Steel vs. N08028 Stainless Steel

Both SAE-AISI M33 steel and N08028 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M33 steel and the bottom bar is N08028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
570

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1550
1420
Melting Onset (Solidus), °C 1500
1370
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 32
37
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 7.7
6.4
Embodied Energy, MJ/kg 110
89
Embodied Water, L/kg 150
240

Common Calculations

PREN (Pitting Resistance) 38
39
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 75
19
Strength to Weight: Bending, points 24 to 46
19
Thermal Diffusivity, mm2/s 5.5
3.2
Thermal Shock Resistance, points 25 to 68
12

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
26 to 28
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0.6 to 1.4
Iron (Fe), % 71.4 to 76.3
29 to 40.4
Manganese (Mn), % 0.15 to 0.4
0 to 2.5
Molybdenum (Mo), % 9.0 to 10
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
30 to 34
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.3 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0